WALGREEN CO

CUSIP: 931422109 Class: COM

STATE OF MICHIGAN RETIREMENT SYSTEM's Holding History (CIK: 0000762152)

Note: Option positions (PUT/CALL) are excluded.

Q3 2014
Shares 482,017 Value ($000) $28,569 Avg Close — Range —
Q2 2014
Shares 480,917 Value ($000) $35,650 Avg Close — Range —
Q1 2014
Shares 478,017 Value ($000) $31,563 Avg Close — Range —
Q4 2013
Shares 529,717 Value ($000) $30,427 Avg Close — Range —
Q3 2013
Shares 528,617 Value ($000) $28,440 Avg Close — Range —
Q2 2013
Shares 525,217 Value ($000) $23,215 Avg Close — Range —